Finding the Fourth Proportional to 1,445.48, 2,168.72 and 1,050.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445.48 : 2,168.72 = 1,050.53 : x
2. Step 2: Convert to fraction form
   1,445.48/2,168.72 = 1,050.53/x
3. Step 3: Cross multiply
   1,445.48x = 2,168.72 × 1,050.53
4. Step 4: Simplify right side
   1,445.48x = 2,278,289.33
5. Step 5: Solve for x
   x = 2,278,289.33/1,445.48
6. Step 6: Final answer
   x = 1,576.15